1SFA897109R7000

ABB 1SFA897109R7000 PSE105-600-70 Soft starter is a 105 A three-phase soft starter from ABB’s PSE series, designed for smooth starting and stopping of AC induction motors. It operates on a 208–600 V AC main circuit with a 100–250 V AC, 50/60 Hz control supply and is typically selected for approximately 55 kW / 75 HP motor applications. The PSE105-600-70 uses two-phase controlled soft-start technology and supports both voltage-ramp and torque-ramp control. It includes a built-in bypass, reducing heat generation and power losses once the motor reaches normal operating speed. The PSE range provides more advanced motor-control functions than ABB’s basic PSR family, including current limiting, kick start, electronic overload protection, underload protection, locked-rotor protection, analog output, event indication, display-based setup, and Modbus communication. These features make the PSE105 suitable for pumps, fans, compressors, conveyors, HVAC systems, water-treatment plants, and industrial process machinery.